Packet Forwarding Method and Network Device

2. The method of claim 1, further comprising searching the VRF table for first route mark information based on the first value to determine the first routing group, wherein the first routing group corresponds to the first route mark information.

5. The method of claim 4, wherein the second routing group does not comprise mark information.

6. The method of claim 1, wherein before obtaining the first tunnel identifier, the method further comprises updating the first packet based on tunnel attribute information carried in the first packet, wherein the first tunnel identifier corresponds to the tunnel attribute information.

7. The method of claim 6, wherein the tunnel attribute information is Virtual Extensible Local Area Network (VXLAN) tunnel attribute information, Multiprotocol Label Switching (MPLS) tunnel attribute information, or segment routing (SR) tunnel attribute information.

8. The method of claim 1, wherein the network device is coupled to a plurality of virtual machines in a data center network.

10. The network device of claim 9, wherein the instructions, when executed by the processor, further cause the network device to be configured to search the VRF table for first route mark information based on the first tunnel identifier as the first value to determine the first routing group, and wherein the first routing group corresponds to the first route mark information.

13. The network device of claim 12, wherein the second routing group does not comprise mark information.

14. The network device of claim 9, wherein the instructions, when executed by the processor, further cause the network device to be configured to update the first packet based on tunnel attribute information carried in the first packet, wherein the first tunnel identifier corresponds to the tunnel attribute information.

15. The network device of claim 14, wherein the tunnel attribute information is Virtual Extensible Local Area Network (VXLAN) tunnel attribute information, Multiprotocol Label Switching (MPLS) tunnel attribute information, or segment routing (SR) tunnel attribute information.

16. The network device of claim 9, wherein the network device is coupled to a plurality of virtual machines in a data center network.

18. The computer program product of claim 17, wherein the computer-executable instructions further cause the apparatus to search the VRF table for first route mark information based on the first tunnel identifier as the first value to determine the first routing group, and wherein the first routing group corresponds to the first route mark information.